由入射波和出射波构成的结构光束
Structured light beams constituted of incoming and outgoing waves
摘要：
在目前的工作中，我们证明了结构光束是由两个行波的横向分量是在相反的方向，即，从传播轴的入射和出射。这些波是由空间波方程的横向分量的两个基本解的复和产生的。在光束被部分阻挡后，在自愈过程中可以很容易地观察到入射波和出射波，从而对这种现象提供了简单的解释。对拉盖尔-高斯光束中的入射波和出射波进行了解析、数值和实验研究。所提出的描述光束的方法可能会为衍射现象提供新的见解。
英文摘要：
In the present work, we demonstrate that structured light beams are constituted by two traveling waves which transverse components are in opposite directions, that is, incoming and outgoing from the axis of propagation. These waves result from the complex sum of the two fundamental solutions of the transverse component of the spatial wave equation. After a partial obstruction of the beam, the incoming and outgoing waves can be easily observed during the self-healing process, providing a simple explanation of the phenomenon. Incoming and outgoing waves in Laguerre-Gauss beams are investigated analytically, numerically and experimentally. The proposed way to describe light beams might offer new insights into the phenomenon of diffraction.
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